Is an accident involving a turn always the left-hand turners fault?

Question Details:

I was turning left at a 4-way intersection. I put my blinker on to start to turn when another driver was about half a block a way. But as I started to turn I noticed that he was going way to fast but before I could do anything he hit me. So I just slammed on the brakes. He didn't even appear to try to stop like I wasn't even there. He maybe slowed down but that was it. I know that the law says that left turn accidents are the turners fault but l would like to know if its still my fault if he was speeding and didn't even try to stop? And if I should get a lawyer? Important Notice